Local Handling Of Bri Call Forwarding - AudioCodes E-SBC User Manual

CHAPTER 28 Configuring Supplementary Services

Local Handling of BRI Call Forwarding

You can configure the device to handle BRI call forwarding per BRI extension line, using the
Supplementary Services table.
The feature is applicable only to BRI interfaces.
Upon receipt of an ISDN Facility message from the BRI phone user, the device retrieves and
stores the user's call forwarding information. This includes whether the user has activated or de-
actived call forwarding as well as the type of call forwarding service (Call Forward Busy, Call
Forward No Reply, and Call Forward Unconditional). When the device receives a call (INVITE
message) for a user whose phone number is configured in the 'Local Phone Number' field of the
Supplementary Services table and call forwarding has been activated by the user, the device
replies to the calling party with a SIP 302 (Moved Temporarily) response containing the configured
call forwarding number corresponding to the call forwarding type. The call forwarding type and
original called number (user's phone number) is sent in the SIP Diversion header, for example:
Diversion: <sip:401>;reason=unconditional;counter=1
The call forwarding number is sent in the SIP Contact header, for example:
Contact: sip:567@10.33.77.17;user=phone
When call forwarding is activated and the user off-hooks the phone, the device plays the stutter dial
tone (Tone Type #15) as a reminder to the user that call forwarding is activated.
➢
To configure BRI call forwarding:
1. Open the Supplementary Services table (see
Supplementary
forwarding parameters:
For more information, see
2. Enable BRI call forwarding, by using the following ini file parameter setting:
BRICallForwardHandling=1
3. Open the Trunk Group table
(e.g., 1) for the BRI ports.
4. Open the Trunk Group Settings table (see
for the Trunk Group ID to which the BRI ports belong, set the 'Channel Select Mode' parameter
to Select Trunk by Supp-Serv Table:
Services), and then configure BRI line extensions with the required call
Configuring Multi-Line Extensions and Supplementary
(Configuring Trunk
- 659 -
Mediant 1000 Gateway & E-SBC | User's Manual
Configuring Multi-Line Extensions and
Groups), and then configure a Trunk Group
Configuring <trnkgrpsettable<product>>), and then
Services.